Expansible shaft.



J. ESENKO.

EXPANSIBLE SHAFT.

APPLICATION FILED MAY 29. |915.

I PeIenIed Feb.15,1916.

4-SHEETS-SHEET l.

I. EsENKo.

EXPANSIBLE SHAFT.v

APPLICATION FILED MAY 29, IsIv.

1 1 7' 1 4 1 '7 Patented Feb. 15, 1916.

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.y WMF/)TQQ 1. ESENKU.

ExPANslLE SHAFT. APPLICATION FILED MAY 29, A1915- Patented Feb.15,1916.

i 4 s HgETs-SHEET 4.

hf/ M5555@ zen of Austria-Hungary, residin UNITEp STATES .PATENT OFFICE.

JAR EsENKo, oF MILL CREEK,

BRITISH COLUMBIA, CANADA.

EXPANSIBLE SHAFT.

Specication of Letters Patent.

PatentedFeb. 15, 1916.

Application ledlay 29, 1915. Serial No. 31,229.

To all 'whom #may concern.'l Be it known that I, JAK

EsENKo, a citivat `Mill Creek,-in the Province of British olumbia, in the Dominion of Canada, have invented 'certain new and useful 'Improvements in Expansible Shafts, of which vthe following is a specification.

This invention relates to improvements in elipansible shafts and moreparticularly to a shaft structure which is adaptedwhen 4in expanded position to receive a web or continuous sheet ofA paper which may be wound'thereupon to form a roll which roll may be readilyA removed from said shaft when in contracted position.

My invention consists of a slotted cylinder secured lin rotary bearings' and provided with longitudinally extending springs which lie in the slotted portionsof said cyllnder and obtain a bearing upon a central core or cam shaft which is carried by said cylinder and which while'in normal position serves to keep the springs partially projected beyond the periphery of the'cylinder to form a bearingsurfac'e for the .web and which core is capable of partial removal from said 4ings'which vform a part of said specication and in which Figure 1 is a longitudinal sectional v1ew of a portion of the mechanism showing the c ore in released position. Fig. 2 is a similarV view showing the 'core 1n isecured position.

Fig. 3 is an endview of Fig. v2and is taken on line 3*-3 of that figure.' Figi@ is a lon'- gitudinal sectional view of a portion ofthe Amechanism showing the e'nd opp'ositeto that shown in Fig.1 and the lcore in released -position..f Fig. 5;,-is -a similar. vlew 'showing the core in secu'ed position. Fig. 6 isl a perspective view of the cylinder. la similar .view/ O'-.oneofthe springs that section taken online 6-4'6of'Fig. 4. Fig.

is a -crosssection'talenonline 7-7 oflFig.'

4".- Fig. 8 is a cross section taken on' 8-#8 of Fig. 1Q.' Fig. 9`is 'a similari view taken on line 9-9 of Fig. 2. 10is a ig. y11 is ts in the-combination *form a bearing surface for the web while the roll is being fo-rmed. Fig. 12 is a front View of the mechanism showing its applicatlon to a `printing press or paper table. Fig.

13 is a plan vlew of F 12' showing the roll ready for removal.

Like vreference characters indicate corre-- sponding parts throughout the several views. T he reference characterv 1 designates part of the frame of a printing press o r paper 4table provided With a bearing 2 having a removable top plate 3; and also a bracket 4 upon which a swivel bearing 5 is carriedv that supports a shaft-6 that-extends through and is also capableof obtainingpartial support in a guide bracket 7 terminally secured 'to the` table 1.` The shaft 6 at one end is. reduced in diameter and squared las at 8 topermit its releasable engagement with a slidable `coupling9 by which it `is operatively connected to the drive shaft 10 which shaft is provided with the expansionv spring 11jto normally retain said coupling in operative relation. The shaft 6 aforesaid is formed integral with anannular cap v12 which is threaded for' engagement with the' threaded exterior end of the cylinder 13 which is formed with the longitudinally extending slots 14 adapted to .receive the,

spring bars lwhich are formed with integral ribs 16 and with terminal feet 18 adaptyed to extend into the ends ofthe said cylinder as shownin Figs. and 5 to prevent the separation ofl said members by gravity.

Within the cylinder a core or camshaft 19 is arranged, the bulged portions of which are adapted to serve as bearings for the in tegral ribs 16 of the spring bars 15 when Isaid shaft 1 9 is in. r1ormal position or when completely telescoped within the cylinder.

The said shaft 19 at one end is formed witha bore-20 adapted'to receiveqthe integral guidetongue 21 of the cap 12 the opposite end of `said shaft being reduced as at 22 andprojected beyond the'end of the cylinder and into a coupling 23 which is formed with an interior annular shouh .lr-2&1 which serves'as an abutment for-the annular shoulder'j251ofthecam' shaft, formed by the juncf v tion of thel reducedportion and the main v portion 'of the (shaft, "when said. .shaft is in releasedA or prje'cted position with relation to the E. cylinder.- -The said` coupling 23,

further','is formed/'With' an exterior annular.

l shoulde'r26 WhichabutSthe end of the cylin# der' 13 lwhich member is threaded for enand the shaft structure gagement with said coupling. The reduced termination 22 /of the cam shaft is formed with a threaded bore to permit its engagement with the threaded lug 27 of a socket 28 whereby said socket is supported and which socket normally abuts the free end of the coupling An expansion spring 29 disposed about the reduced end of the cam shaft abuts the shoulder 24 of the coupling 23 and the socket 28.

lVithin the socket 28 a ball 30 is carried and retained in operative position by means of the apertured screw cap 31 applied to said socket,- the ball partially projecting` through the apertured portion of said cap to normally obtain a bearing upon an angular bracket 32 terminally secured to the table 1. Rotation of the drive shaft 10 will,

through the medium of the coupling 9, ro-` tate the shaft G which willv rotate the cylinder and the complete shaft structure in its bearings, the ball 30 rotating against the bracket y The web of `paper to be wound is started about the spring bars 15 while they are in the position illustrated in Figs. 2 and 5 and vrotation of the structure will wind the web thereupon and form aroll. To remove the roll the top plate 3 of bearing 2 is removed gently swung upon its swivel support 5. l

As the Vcap 31 moves out of the plane of the bracket 32 the ball 30 is released from engagement withv that bracket and the spring 29 forcesthe socket 28 away from the coupling 23 and withdraws the cam shaft partially from the cylinder until the shoulder 25 of that shaft meets the shoulder 24 of the coupling. The bulged portions of the cam shaft are now disengaged from the ribs 16 of the spring'bars whichbars thenl assume the position illustrated in Figs. 1 and 4 or telescope into the cylinder, until the feet 18 obtain a bearing upon the cam shaft, when the roll may be readily removed in any approved manner.

What is claimed is p 1. An expansible shaft structure comprising a supporting table provided with a bracket, a longitudinally slotted cylinder,

i a swivel bearing operativelyI associatedv with bars are actuated, a .socket terminally carsaid cylinder, a rotary partitioned coupling terminally engaging said cylinder, a cam shaft arranged in said cylinder and-rotary coupling and capable of longitudinal movement IWith i Y,spect to said members, spring bars movably'arrangedin the slotted por-` tionsof said cylinder.- and formed with integral ribs having a bearingl upon the said cam shaft through the longitudinal movement of which latter member said spring ried by said cam shaft, ,a ball retained in saidsocket and normally having a bearing upon the aforesaid bracket andl an expansion spring arranged about said cam shaft within said rotary coupling and abutting the partition in said member and the said socket whereby a longitudinal movement is imparted to said cam shaft as said cylinder is swung from the said swivel bearing.

2. An expansible shaft structure comprising a supporting table provided with a bracket, a longitudinally. slotted cylinder, a swivel bearing operatively associated with said cylinder, a rotary partitioned coupling terminally engaging said cylinder, a cam shaft arranged within said cylinder and rotary coupling and capable of longitudinal movement with relation thereto, spring bars arranged in the slotted portions of said cylinder and formed with integral ribs having a bearing upon the said cam shaft through the longitudinal movement of which a transverse movement is imparted to said spring bars, a socket terminally carried by 'said cam shaft, a ball retained in said socket and normally having a bearing upon the aforesaid bracket and an expansion spring arranged about a portion ofV said cam shaft within said rotary coupling and abutting the partition in said member and the said socket whereby movement is imparted to said cam shaft when said cylinder is swung from its swivel bearing. f

3. An eXpansible shaft structure comprising a supportingy table provided with a `bracket, a longitudinally slotted cylinder,

a rotary shaft formed with an integral annular cap secured to said cylinder, a swivel .bearinor for said rotarv shaft arotar )ar- .tained in said socket and normally having a bearing uponthe aforesaid bracket and eX- pansion means within/ said coupling and associated with said socket and cam shaft for imparting a longitudinal movement to the latter member as said rotary shaft is swung in its swivel bearing.

4. An expansible shaft structure comprising a supporting table, a swivel bearing carried by said table, a`shaft supported in Said swivel bearing, a guide bracket carried by said table and in engagement with said shaft, a longitudinally slotted cylinder, a cap formed integral with the said shaft and engaging said cylinder, a guide tongue formed integral with said cap and projected into said cylinder, a rotary partitioned couplmg terminally engaging saidcylinder, a

4 cam shaft arrangedin cylinder and rotary coupling and formed withl a bore in ne.' 4

end to receive the said tongue and capable of longitudinal 'movement withY respect to the said members, spring bars movably .ar-4

ranged in the slotted portions of said cylinder and formed'ewith integral ribs having-a bearingupon the saidcam shaft throughthe vlongitudinal movement of which latter member said' spring bars are actuated, a socket with lthe first/named'shaft in the said swivel bearing and means carried by said table 4and normally infrictional engagement with the said ball whereby. longitudinal movement of the `same and its connections is normally obviated. Y

5. An expansible shaft structure comprising asupporting table, a swivel'bearing car-y rie'd-by said table, a slotted cylinder' operatively associated with said swivel bearing, v rotaryc'onnection for oneend of said cylinder, a support carried by said table for said rotary connection and capable of disengage` ment therefrom, a cam' shaft arranged in said cylinder and capable of longitudinal movement with relationthereto, means ,dis-

posed in the slotted portions of said cylinder for frictional engagement with said `cam shaft and operable thereby to i engage or disengage a roll of paper upon said cylinder e and means carried by said table and normally disposed in the plane of rotation of said cam shaft whereby relative longitudinal movement of the same is normally obviated. e I

6. An expansible shaft structure comprising a supporting table, a slotted cylinder, ro-

tary connection for one end of said cylinder,

a4 support for said-rotary connection and capable of disengagement therefrom, a cam shaft arranged in said cylinder and capa ble lof vlongitudinal movement with relation thereto, means disposed in the slotted portions of said cylinder in frictional 4engagement with the said cam shaft and operable thereby to engage or disengage a roll of paper upon said cylinder, means carried by said table and normally disposed in the plane ofrotation of' said cam shaft whereby relative longitudinal movement thereof is obviated. anda swivel bearingjcarried by said table and operatively associated withk said cylinder whereby the same may be swung out of association with the last named `means to permit longitudinalmovement of' the said cam shaft.

In testimony ,that I claim the foregoing as my .own 'I have hereto aiiixed my signa ture 1n the presence of two subscribingwit nesses.- JAK ESENKO..

Witnesses: v

RUDOLF KRAFT, 

